/Engine/Plugins/2D/Paper2D/Source/Paper2D/Classes/PaperFlipbook.h
Returns the collision source of this flipbook animation (if any)
[TEnumAsByte](API\Runtime\Core\Containers\TEnumAsByte)< [EFlipbookCollisionMode::Type](API\Plugins\Paper2D\EFlipbookCollisionMode__Type) > GetCollisionSource() const